The Gen 4 Glocks have been out for a while and I need some education on their preformances. I shoot in some high speed, low drag, shooting disciplines with Gen 3's. I was wondering how the Gen 4's match up to the Gen 3's? I'm thinking a faster recovery time b/c of the dual recoil spring, which would help with the "control pairs, double-triple taps", or whatever you want to call them. Are the triggers the same as the Gen 3's? Also, are there any "fly's" on the Gen 4 for the higher pressure rounds in .40/.357/GAP that I haven't mentioned? Thank you for your help.